NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Robert Mohr

Department of Economics
University of New Hampshire
Durham, NH 03824

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NBER Working Papers and Publications

January 2002Suggested Subsidies are Sub-optimal Unless Combined with an Output Tax
with Don Fullerton: w8723
Because of difficulties measuring pollution, many prior papers suggest a subsidy to some observable method of reducing pollution. We take three papers from the Journal of Environmental Economics and Management as examples, and we extend them to make an additional important point. In each case, we show that welfare under the suggested subsidy can be increased by the addition of an output tax. While the suggested subsidy reduces damage per unit of output, it also decreases the firm's cost of production and the equilibrium break-even price. It might therefore increase output -- unless combined with an output tax. Using one example, we show that a properly-constructed subsidy-tax combination is equivalent to a Pigovian tax. Another example is a computational model, used to show that the subsid...

Published: Don Fullerton & Robert Mohr, 2003. "Suggested Subsidies are Sub-optimal Unless Combined with an Output Tax," Contributions to Economic Analysis & Policy, Berkeley Electronic Press, vol. 2(1), article 1, pages 1097-1097.

 
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